一个测量可用的常识：手臂伸直两测指尖的距离就是你的身高。

We use mathematics to understand the markets, not to predict them.

"In tennis, like in life, you have to keep moving forward—one point at a time."

I don't care about the fame or the money. I care about the music.

I think the most important thing in life is self-confidence.

旅行对我来说，是恢复青春活力的源泉。